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Nathan
2026-02-19 03:05:29 -05:00
committed by GitHub
parent afb9a7019a
commit a109f18301
1 changed files with 44 additions and 11 deletions
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55
SPARAMS.m
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@@ -53,7 +53,7 @@ classdef SPARAMS < handle
case 1
obj.setFile(filename);
case 0
warning('No data set. Once data is assigned you will need to call setNumPorts() to set the number of ports.');
% warning('No data set. Once data is assigned you will need to call setNumPorts() to set the number of ports.');
end
obj.setFreqUnits('Hz');
end
@@ -134,6 +134,9 @@ classdef SPARAMS < handle
hashIndex = strfind(txt,key);
newLineIndex = regexp(txt(hashIndex:end), '[\r]');
if isempty(newLineIndex)
newLineIndex = regexp(txt(hashIndex:end), '[\n]');
end
newLineIndex = newLineIndex(1);
obj.form = txt(hashIndex:hashIndex+newLineIndex);
@@ -142,14 +145,24 @@ classdef SPARAMS < handle
dataTxt = regexprep(dataTxt, '![\s\S]*?!|([^:]|^)!.*$', '', 'lineanchors', 'dotexceptnewline');
dataTxt = regexprep(dataTxt, '\t+', ' '); %Remove all tabs and replace with s single space (dealt with in next line
dataTxt = strtrim(dataTxt); %Remove trailing whitespace
for j = 1:100 %Not a very efficient way of doing it, but I'm getting tired of this shit
len = 101 - j;
for k = 1:len
regStr(k) = ' ';
end
dataTxt = regexprep(dataTxt, regStr, ',');
clear regStr
% for j = 1:100 %Not a very efficient way of doing it, but I'm getting tired of this shit
% len = 101 - j;
% for k = 1:len
% regStr(k) = ' ';
% end
% dataTxt = regexprep(dataTxt, regStr, ',');
% clear regStr
% end
%% test regex replacement of tabs and spaces with a comma
dataLines = strsplit(dataTxt, '\n');
for i = 1:numel(dataLines)
dataLines{i} = regexprep(dataLines{i}, '[\s\t]+', ',');
dataLines{i} = regexprep(dataLines{i}, '^,|,$', ''); % Remove leading/trailing commas
dataLines{i} = strtrim(dataLines{i}); % Remove leading and trailing spaces
dataLines{i} = erase(dataLines{i}, newline);
end
dataTxt = strjoin(dataLines, '\n');
%% End test
obj.rawData = cell2mat(textscan(dataTxt, '', 'delimiter', ',', 'headerlines', 0, 'emptyvalue', nan, 'collectoutput', 1));
obj.formatMatrix();
obj.f = obj.data(:, 1);
@@ -396,9 +409,7 @@ classdef SPARAMS < handle
end
function plotSmith(obj, splt)
%Plots any speciified S-parameter(s) in polar format
%Say you wish to plot only S11 and S21
%s.plotPolar({'S11' 'S21'})
%Plots any speciified S-parameter(s) on a drawn Smith Chart
% Draw Smith chart axes
% Draw outer circle
@@ -504,6 +515,9 @@ classdef SPARAMS < handle
%s.renorm(newZ0);
%http://qucs.sourceforge.net/tech/node98.html
%NOT FINISHED FOR 3 OR 4 PORTS
if obj.numPorts > 2
error('Cannot renormalize for more than 2 ports.');
end
Z0old = obj.Z0;
for i = 1:length(obj.f)
S = obj.toMat(obj.f(i));
@@ -701,6 +715,25 @@ classdef SPARAMS < handle
methods(Static)
% function [S11, S12, S21, S22] = cascadeDifferent(S1, S2)
% %Calculates S parameters of two SPARAMS objects. Only valid for
% %2 port unit cells.
% [A1, B1, C1, D1] = S1.toABCDparams;
% [A2, B2, C2, D2] = S2.toABCDparams;
% for i = 1:numel(S1.f)
% ABCDtemp = [A1(i) B1(i);C1(i) D1(i)]*[A2(i) B2(i);C2(i) D2(i)];
% At(i) = ABCDtemp(1, 1);Bt(i) = ABCDtemp(1, 2);Ct(i) = ABCDtemp(2, 1);Dt(i) = ABCDtemp(2, 2);
% end
% % S11 = (At + Bt/S1.Z0 - Ct.*S1.Z0 - Dt)./(At + Bt/S1.Z0 + Ct.*S1.Z0 + Dt);
% % S12 = (2.*(At.*Dt - Bt.*Ct))./(At + Bt/S1.Z0 + Ct.*S1.Z0 + Dt);
% % S21 = 2./(At + Bt/S1.Z0 + Ct.*S1.Z0 + Dt);
% % S22 = (-At + Bt./S1.Z0 - Ct.*S1.Z0 + Dt)./(At + Bt/S1.Z0 + Ct.*S1.Z0 + Dt);
%
% [S11, S12, S21, S22] = SPARAMS.abcd2s(At, Bt, Ct, Dt, S1.Z0);
% S11 = S11';S12 = S12';S21 = S21';S22 = S22';
%
% end
function sDUT = deembed(err1, sALL, err2)
%Deembed S-parameters under the following conditions
%Measurement: sALL = P1 <-- err1 <--> DUT <--> err2 --> P2